Choose An Installation Location - Rinnai Sensei CU199i Installation And Operation Manual

4.3 Choose an
Installation
Location
When selecting an installation location, you must
ensure that clearances will be met and that the
vent length will be within required limits. Consider
the installation environment, water quality, and
need for freeze protection. Requirements for
the gas line, water lines, electrical connection,
and condensate disposal can be found in their
respective installation sections in this manual.
4.3. 1 Water Quality
Guidelines
This section provides information on the
importance of water quality to the Rinnai Tankless
Water Heater. The information is intended to serve
as general guidelines only and is not a complete
list of water quality guidelines.
Consideration of care for your water heater should
include evaluation of water quality. The water must
be potable, free of corrosive chemicals, sand,
dirt, or other contaminants. It is up to the installer
to ensure the water does not contain corrosive
chemicals or elements that can affect or damage
the Rinnai Tankless Water Heater. Water that
contains chemicals exceeding the levels below
can damage the Rinnai Tankless Water Heater.
Replacement of components due to water quality
damage is not covered by the warranty.
If you install this water heater in an area that is
known to have hard water or that causes scale
build-up, the water must be treated and may
require a more frequent flushing schedule. This
water heater includes a service indicator (Service
Soon, SS). When selected in the parameter
settings, an SS code will display on the controller
indicating that it is time to flush and service
the water heater. Scale build-up is caused by
hard water and can be accelerated if the water
heater is set at a high temperature. Rinnai offers
Southeastern Filtration's "ScaleCutter Water
Conditioning System" that offers superior lime
scale prevention and corrosion control.
Rinnai Tankless Water Heater Installation and Operation Manual
Table 5
Contaminant
Total Hardness
Aluminum *
Chlorides *
Copper *
Dissolved Carbon
Dioxide (CO2)
Iron *
Manganese *
pH *
TDS (Total Dissolved
Solids) *
Zinc *
*Source: Part 143 National Secondary Drinking Water
Regulation
4.3.2 Environment
Air surrounding the water heater, venting, and vent
termination(s) is used for combustion and must
be free of any compounds that cause corrosion of
internal components.
These include corrosive compounds that are
found in aerosol sprays, detergents, bleaches,
cleaning solvents, oil-based paints/varnishes, and
refrigerants. The air in beauty shops, dry cleaning
stores, photo processing labs, and storage areas
for pool supplies often contains these compounds.
Therefore, it is recommended that external
(outdoor) models be used for these locations
where possible. In applications utilizing room air
where there are high levels of particulates, Rinnai
offers a room air screen.
The water heater, venting, and vent termination(s)
should not be installed in any areas where the air
may contain these corrosive compounds.
Maximum Level
Up to 200 mg/L
Up to 0.2 mg/L
Up to 250 mg/L
Up to 1.0 mg/L
Up to 15.0 mg/L
Up to 0.3 mg/L
Up to 0.05 mg/L
6.5 to 8.5
Up to 500 mg/L
Up to 5 mg/L
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